Home / 30,318.86-45,394.32-15,495.86

Finding the Fourth Proportional to 30,318.86, 45,394.32 and 15,495.86

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Solution

The fourth proportional to 30,318.86, 45,394.32 and 15,495.86 is: 23,200.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,318.86 : 45,394.32 = 15,495.86 : x
  2. Step 2: Convert to fraction form
    30,318.86/45,394.32 = 15,495.86/x
  3. Step 3: Cross multiply
    30,318.86x = 45,394.32 × 15,495.86
  4. Step 4: Simplify right side
    30,318.86x = 703,424,027.52
  5. Step 5: Solve for x
    x = 703,424,027.52/30,318.86
  6. Step 6: Final answer
    x = 23,200.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.